Connecting piece for iron sheet piling



K. NOLTE CONNECTING PIECE FOR IRON SHEET FILING Nov; .6, 1928.

2 Sheets-Sheet 1 Filed Sept. 50, 1927 K. NOLTE dONNECTING PIECE FOR IRON SHEET FILING Nov. 6, 1928.

Filed Sept. 30, 1927 2 Sheets-Sheet 2 Patented Nov. 6, 1928.

UNITED STATES KARL NOLTE, OF DORSTMUND, GERMANY.

CONNECTING PIECE FOR IRON SHEET "PILING.

Application filed Septemb'erilfl, 1927, Serial No. 223,127, and in Germany August 2, 1927.

Valle of iron sheet piling are usually constructed either by joining separate sheet piles to one another or casings are formed :trom a number-oi? sheet piles placed against one another, these casings being joined together. A

combination of the two forms of walls de' scribed may also be adopted. The present invention relates to an arrangement by which any of the three processes may be carried out with the same means by inserting a special connecting piece between each pair of sheet piles or casings which serves either as a single or a double connection.

In the drawings forming a part hereof Fig. 1. is a detail in section showing one form of the connecting piece, the section being through the said piece.

Figs. 2 and 3 are similar views of other embodiments of the invention.

Fig. 4 is a horizontal section through part of the piling wall with the connecting pieces in section.

Fig. 5 is aview similar to Fig. 1, showing another embodiment of the invention.

Figs. 6, 7 and 8 are horizontal sections through portions of the piling wall showing various applications of the connecting piece of Fig. 5.

Fig. 1 shows a form of bulb and claw con nection. the connecting piece a being oval whilst the claws located at the sides are of circular or flattened spherical form. The connection for the sheet pile Z) corresponds to the form of the claw, but is cut in half so that the recesses c and (Z are formed. lVith this arrangement the claw will be subjected. to a smaller bending stress with forces set up in a longitudinal direction, than would be the case if the claw occupied the full space. Furthermore, it is now possible to insert the connecting piece 6 in the recess. This is only done when it is desired to construct a casing, in other cases only the iron part b isemployed. Figs. 2 and 3 show another"arrangement on the same principle. Fig. 4 shows the application of the method to an ordinary sheet piling wall. According to Fig. 5 the connecting piece f is constructed in a known manner, it has one end lengthened at 9 however in such a way that an intermediate groove is formed which serves for the reception of the second sheet piling h. On the other hand the connection of the sheet piling j is so arranged that it will have suflicient hold to form a re liablejoinheven when the sheet piling it, has

not been also inserted in the intermediate part Figs. 6, 7 and 8 showthe manner in which, with the assistance of this intermediate part, casings, simple sheet piling walls and combinations oi them may be developed.

In the case'ot heavy stresses the moment of resistance may also be increased by compressing the connecting parts on the sheet pile or they maybe connected to the sheet piling by spot welding so that a practically rigid wall is formed. The connecting pieces according to the invention may of course be constructed in other ways with slight changes.

It will be apparent from a consideration of the drawing that the sheet piling in each in stance is composed of two sets of sections, the sections of each set being similar. The sections of one set b in Fig. 1 have at each side edge a substantially T-shaped flange, that is a flange extending from both faces of the section, or oppositely extending flanges. The sections of the other set have merely the angular flange d at each side edge, but this flange is shapd to fit into the angle formed between one site of the T-shaped flange and the body of the piling section.

The connector a or f, as the case may be, is shaped to fit about the flanges so engaged. That is, the connector in each instance, has a so-called claw, which engages outside of the flange (Z, and outside of that portion of the T flange which extends in the opposite direc" tion. This arrangement enables a wall to be constructed in the manner shown in Fig. 6, in the manner shown in Fig. 7, or in the mar nor shown in Fig. 8. In building the wall. the sections of the set having oppositely extending flanges at each side edge are arranged similarly or alternately opposite. The arrangment is also shown in Fig. 4.

If desired. the wall may be made in the manner of Fig. 8, wherein the alternate piles are tubular and the intermediate piles not. In Fig. 6, all of the piles which constitute the wall are tubular. The improved connector will firmly lock the piling sections in the manner shown in Fig. 7, in that shown in Fig. 8, or in that shown in Fig. 6.

In Fig. 6, the sections of the set having oppositely extending flanges at each side edge are arranged opposite alternately. That is each alternate section has its concavity in the (ill ice

posed of sets of similar concavo-convex sections, the sections of one set having at each side edge oppositely extending flanges, and the sections of the other set having at the r opposite side edges angular flanges extending in one direction, and shaped to fit between the fia' 'es of a section of the first named set' When the sections of the two sets are placed face to face with their concavities adjacent, and connecting pieces for connecting the sections of the first named set when arranged side by side in similar or opposite relation to forms sheet wall, andi or connecting the seetions o1 the second set to each other and to the SQCtlOIlSOf the first set when the SGCtlOIlS' of t the two sets are arranged face to 'face with their concavities adjacent to form a wall of tnbular portions, each connecting piece 111 eluding a web to extend between ad acent edges of the sections, and provided at each side edge with oppositely extending means to engageoutside the flanges of the sections. 7

In testimony whereof I have aflixed my signature; I Y r ARLNOLTE, 

